While I've certainly owned more expensive blushes, I don't think I've ever liked one as much as I love the Physician's Formula mineral blush in "Rosy Glow." For a long time, my all-time favorite was Lancome's Shimmer Pink Pool which retails for about $40, though it did last me about four years. It was a beautiful bright pink color shot with silver glitter and I loved it. But glittery blushes get harder to wear once you've left school, even though I could probably justify the price given the longevity of the product.
But on a whim, I picked up the entire "Fair" mineral collection from Physician's Formula, which included a powder foundation, blush and mineral veil. The blush was the stand-out of the three.